Blue is one of the three primary colours in the RYB colour model, as well as in the RGB colour model.
FactSnippet No. 976,316 |
Blue is one of the three primary colours in the RYB colour model, as well as in the RGB colour model.
FactSnippet No. 976,316 |
Blue chose seven colours because that was the number of notes in the musical scale, which he believed was related to the optical spectrum.
FactSnippet No. 976,317 |
Blue is the colour of light between violet and cyan on the visible spectrum.
FactSnippet No. 976,318 |
Blue Boy, featuring lapis lazuli, indigo, and cobalt colourants,.
FactSnippet No. 976,319 |
Blue pigments were once produced from minerals, especially lapis lazuli and its close relative ultramarine.
FactSnippet No. 976,320 |
Blue light is scattered more than other wavelengths by the gases in the atmosphere, hence our "blue planet".
FactSnippet No. 976,321 |
Blue eyes are most common in Ireland, the Baltic Sea area and Northern Europe, and are found in Eastern, Central, and Southern Europe.
FactSnippet No. 976,322 |
Blue eyes are found in parts of Western Asia, most notably in Afghanistan, Syria, Iraq, and Iran.
FactSnippet No. 976,323 |
Term for Blue was relatively rare in many forms of ancient art and decoration, and even in ancient literature.
FactSnippet No. 976,324 |
Blue was not used for dyeing fabric until long after red, ochre, pink, and purple.
FactSnippet No. 976,325 |
Blue glazes posed still another challenge since the early blue dyes and pigments were not thermally robust.
FactSnippet No. 976,326 |
Blue was not one of the four primary colours for Greek painting described by Pliny the Elder .
FactSnippet No. 976,327 |
Blue was widely used in the decoration of churches in the Byzantine Empire.
FactSnippet No. 976,328 |
Blue installed stained glass windows coloured with cobalt, which, combined with the light from the red glass, filled the church with a bluish violet light.
FactSnippet No. 976,329 |
Blue had come from obscurity to become the royal colour.
FactSnippet No. 976,330 |
Blue came into wider use beginning in the Renaissance, when artists began to paint the world with perspective, depth, shadows, and light from a single source.
FactSnippet No. 976,331 |
Blue continued to be the colour of the field uniform of the US Army until 1902, and is still the colour of the dress uniform.
FactSnippet No. 976,332 |